My ajax code always receives a success response even in case of error. I'm using Laravel 8.2.

Here is JavaScript

    $(".deleteRecord").click(function(){
    var id = $(this).data("id");
    var token = $("meta[name='csrf-token']").attr("content");
    if(confirm('Do you want to delete?')){
        $.ajax(
            {
                url: "operDel/"+id,
                type: 'post',
                cache: false,
                data: {
                    "id": id,
                    "method": 'post',
                    "_token": token,
                },
                dataType: "json",
                success: function() {
                    alert('Record is deleted'); // I getting only this alert
                },
                error: function() {
                    alert('You can not delete this record');
                }
            });
    }
});

Here is Route

Route::post('operDel/{id}', '\App\Http\Controllers\OperationController@destroy')->name('operDel')->middleware('auth');

Here is Contoller

    public function destroy($id)
{

    $user = User::find($id);
    if($user->type !== 0) {
            $user->delete();
            return response()->json([
                'success'=>"Record deleted."
            ]);
    }
    else{
        return response()->json([
            'error' => "You can not delete this"
        ]);
    }
}

The controller is running without error, it deleted record from DB when $user-> type! == 0. But I'm getting only the alert within the success function. How can I display response message to alert?